Safety stopper for bottles or other receptacles



May 29, 1928.

L; MEDVECZKY SAFETY STOPPER FOR BOTTLES OR OTHER RECEPTACLES Filed May 7, 1925 Inventor LaJisYaw Nedvecz 76y Patented May 29, 1928.

LADISLAW- manvnczxx, OF'RAKSSHEGY, HUNGARY.

SAFETY s'rorrna ro-n iaorrrns on o'rrtna anonymous.

Application filed May 7, 1926, Serial No 16'Z ,34 an d in Hungary June 3, 1925.

This invention relates to stoppers adapted to prevent fraudulent re-filling by leaving evidence of the fact that the bottle or other receptacle has been once opened.

The object of the invention is to obtain full safeness from surreptitious opening by means of a stopper simple in construction, having no delicate parts, requiring no ex traordinary manipulation in use, and allowing to open the bottle or receptacle without breaking parts made otglass or the like.

A constructional form of the invention is illustrated by way of example, in the ac-' companying drawings in which- Fig. 1 represents a vertical sectional view of a bottle neck stoppered in accordance with the invention, and Fig. 2 is a hori.-.

zontal section on the line 3-3 of Fig. 1.

Referring to the drawing one end of a piece of braid or tape 4, preferably of metallic or asbestic filaments, is embedded in the bottle neck 5 while the bottle is being mamifacturcdf The other end of the same piece of braid or tape 4 is similarly embedded in the flange 6 of the plug 7 made of the material of the bottle (glass, porcelain, potters earthor the like). At a circumferential point diametrical to the embedded end of the braid or tape 4;, the body of the plug 7 is provided with a radial bore 8. Inserted into this bore 8 is a bolt or plunger 9 and a spring 10 behind the latter. While inserting the plug the spring 10 pushes the bolt or plunger 9 into a groove or recess 11 in the bottle neck. This groove or recess extends circumferentially, gradually becoming shallower near the embedded end of the braid or tape 4, and entirely vanishing in proximity thereto. The free length of the braid or tape and the height of the plug 7 are so dimensioned with relation to each other and to the diameter of the plug that the plug is allowed to be inserted in the ordinary manner, but prohibited from being turned around its own axis by 180 which movement, however, is necessary for unlocking the plug. Thus the stopper, when once inserted, cannot be removed but after severing the flexible attaching member 4 so that the fact that the bottle has once been opend cannot be con cealed and will be readily observable.

I prefer to employ a braided, woven or twisted attaching member which, when once severed, cannot be united again by soldering or any other operation without detection.

There have been known self-locking stoppers with a spring-catch or lock-pin which engages a groove in the bottle neck and, in some cases, altogether prohibits the removal of the stopper except by mutilating either the receptacle or the stopper or, in other cases, prevents only an accidental loosening of the stopper. On the other hand, it has also been proposed to provide flexible connection between a bottle neck and the stopper therefor, in order to prevent the stopper of one bottle from being exchanged for that of another bottle and to hold the stop per with suflicient pressure to its seat. I claim neither such self-locking stopper, nor such flexible connection per se. 'Even the combined arrangement of a locking device with a flexible connection between the stopper and the receptacle comes within the scope of my invention only when the combination is such a particular one as corre sponds to my appended claims.

lVhat I claim is 1. A safety-stopper for a receptacle, comprising in combination a plug, a locking device automatically locking said plug in the neck of the receptacle and requiring a definite movement of the plug for unlocking the same, and a flexible connection between said plug and the receptacle allowing said plug to be inserted, but prohibiting said definite movement of the inserted plug.

2. A stopper for a receptacle, comprising a plug. a locking device automatically looking said plug in the inserted position and requiring a definite movement of the plug for unlocking the same, and a flexible attaching member between said plug and the receptacle, embedded with one end in the material of the plug and with the other end in the material of the receptacle, and having a free length allowing said plug to be inserted, but prohibiting said definite movemeut of the inserted plug.

A stopper for a receptacle, comprising a plug of the material of the receptacle, a locking device automatically locking said plug in the inserted position and requiring a definite movement of the plug for unlocking the same, and a flexible attaching member between said plug and the receptacle, embedded with one end in the material of the plug and with the other end in the material of the receptacle, and having a free length allowing said plug to be inserted, but prohibiting sald definite movement of the inserted plug.

4. A stopper for a receptacle, comprising a plug of the same material as the rece 10 for unlocking the same, and a piece of braid 7 made of metallic filaments embedded with the one end in the material of the plug and with the other end in the material of the receptacle, and having a free length allowing said plug to be inserted, but prohibiting said definite movement of the inserted plug.

In testimony whereof I aflix my signature.

LADISLAWV MEDVEOZKY. 

